One problem related to steering wheel vibrate has been reported for the 2012 Jeep Wrangler. The most recently reported issues are listed below.
For months ongoing, at approximately 50 mph and again at 80 mph my steering wheel shakes and the whole vehicle vibrates. I do not have a lift kit on my vehicle nor any other suspension or steering modifications. I had a local Chrysler dealer inspect tie rods, ball joints, track bar, and steering stabilizer but was informed that all parts are in working order and do not need replacement/repair. My Jeep has 99k miles on it.